Carving-machine



(No Model.) 2 Sheets-Sheet 1.

P. D. PEGK.

GARVING MACHINE.

Patented June 24, 1890.

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(No Model.) 2 Sheets-Sheet 2.

P. D. Q PEGK.

GARVING MACHINE.

No. 430,678. Y

fimilm DPeck.

q mimaooazy UNITED STATES PATENT OFFICE.

FRANKLIN'D. PEOK, OF GRAND RAPIDS, MICHIGAN.

CIARVINGQMACHINE.

SPECIFICATION forming part of Letters Patent No. 430,678, dated June 24,1890.

Application filed May 8, 1889. Serial No. 310,070. (No model.)

To ctZZ whom it may concern.-

Be it known that I, FRANKLIN D. PEcK, a citizen of the United States,residing at Grand Rapids, in the county of Kent and State of Michigan,have invented certain new and useful Improvements in Carving-Machines;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to the construction of an automaticcarving-machine; and it consists in the construction, combination, andarrangement of parts, hereinafter specified,

and pointed out in the claims, reference be-= ing had to theaccompanying drawings.

The object of my invention is to produce a machine that willautomatically carve geometrical or other figures upon blocks of wood forornamental purposes, and I accomplish this object by the mechanismherein described and illustrated.

Referring to the drawings, Figure 1 is a side elevation of my automaticcarving-machine; Fig. 2, an end elevation of the same; Fig. 3, avertical section on the line a: 00 of Fig. 2; Fig. at, a plan view ofthe turntable and ways; Fig. 5, a detail plan view of the ratchetplate.Fig. 6,- a detail plan view of extra trian gular attachment for cornerwork.

Like letters refer to like parts in each of the several figures.

A represents the main frame of my improved carving-machine, which framemay be of any suitable construction, and B designates the maindriving-shaft, which extends transversely of the main frame and has itsbearings in boxes secured to the supportinglegs (1. thereof. This shaftis driven byabel connection with some suitable driving-power (notshown,) said belt passing over a pulley B, secured on the end of saidshaft, and its motion is transmitted to the other operating parts of themachine through the mechanism hereinafter described. Fixed on this shaftB is a pinion D, the teeth of which intermesh with the teeth ofacog-whee1 D, which is mounted on a shaft 0, journaled in bearings abovethe main driving-shaft and extending longitudinally of the main frameparallel with said driving-shaft. This shaft 0 also carries aclutch-coupling 'E, the movable member of which is provided with a leverF.

G designates a crank-wheel, which is mounted on one of the ends of theshaft 0 and provided with a crank-pin I. This crankpin is adjustable inan elongated slot 17, formed in a pitman H, and serves to connect saidcrank-wheel and pitman together. This pitman H is pivoted at its lowerend on a horizontal shaft h, the bearing of which is in one of the lowercorners of the main frame, and its upper end is connected by means of arod J and wrist-pin K with a carriage 1. This carriage 1 is reciprocatedtransversely of the main frame on ways 2 by means of said pitman, andthe throw of said pit-man and consequent travel of the carriage isdetermined by the position of the crank-pin I within the slot 17. l

The ways 2 referred to rest on and are secured in any suitable manner toa post 3, which passes through a sleeve M. This post supports the entiresuperstructure of my improved carving-machine, and it is verticallyadjustable by means of a screw 4., which passes through a projection 4,and nut 8, extending inward from the lower end of the post and from saidsleeve M, respectively. This sleeve M is formed at its upper end withhorizontal projections M, from one of which extends downward anotherprojection m. Passing into the post 3, through this projection m andthrough a perforation formed in the side of the sleeve M, is a screw 5,by means of which said'post, sleeve, and the entire superstructure of mymachine may be adjusted longitudinally of the frame to bring the blockbeing operated on into proper position with respect to the cutter; andto permit such adjustment the wrist-pin K is made in telescopic sections7t, secured together in any suitable manner; and to permit transverseadjustment of said superstructure the rod J is made in two parts jj,secured together by a bolt 16, one of said parts, asj, having alongitudinal groove, and the other, as j, a tongue fitting in saidgroove to prevent liability of disengagement of said parts As shown bestin Fig. 2, the projections M of the sleeve M are dovetailed, and in theadjustment of the superstructure travel in correspondingly-shaped waysL, secured to the main frame, and it is proper to here remark that thecarriage 1 also has dovetail engagement with its ways 2. To permit thevertical adjustment of the post 3 and the mechanism which it supports,said post is formed with elongated slots 20. (Shown best in Fig. 3.) Forconvenience in operating the screws 4 and 5 they are each provided witha hand-wheel.

O is a spindle carrying'the cutter P. This spindle is provided with apulley O, and is journaled in the head N, supported by the frame A.

Q designates a turn-table, to which is secured, by means of dogs R, theblock being operated on. This turn-table is secured to a ratchet-plate,which turns upon a bolt '7, (shown in Fig. 3,) and is provided with afriction-packing 11, to prevent its turning too easily. This bolt passesthrough a block 21, which is recessed on its under side, as shown at 22,and rests on the carriage 1, to which it is fixed. Two forms ofratchet-plates are shown. The one T, secured upon the machine, isdesigned for serpentine work, and has its teeth U projecting at rightangles to its body, while that T (shown in detail in Fig. 5) is forordinary plain work or where right lines only are used, and its teeth Zproject outward on a level with said body part, being,

in fact, formed by notching said body part.

The ratchet-plates are secured to the turn-ta ble by screws, bolts, orother suitable means, which pass through the perforations 15, formed insaid plate. The transverse movement of the superstructure causes theratchet-teeth to be engaged successively by a pawl w, which isconstructed of springy material to permit it to spring into and out ofengagement with said teeth by the reciprocal movement of the su:

per-structure. Said pawl is mounted on a post '0, secured to thetransverse way 2, and by its engagement with said ratchet-teeth rotatesthe turn-table intermittently, bringing the block clamped on saidturn-table into position to permit the cutter P to plow a new groove orbead (according to the form of cutter-head used) across the face of theblock. In connection with the plate T there is used for serpentine worka plate 6, which is located with in a recess formed in the uppersurfaceof the carriage l coincident with the recess 22 in the block 21'. Theupper surface of this plate 6 is preferably flush with the upper surfaceof the carriage 1, and its ends are secured to brackets 6*, whichembrace the ends of and are secured to the transverse ways 2. This platehas curved guides 15 attached to its upper surface. These guides,receiving between them the teeth or projections U of said plate T, givethe same a motion corresponding with their shape.

Referring now to Fig. 4, it will be seen that the dogs R, which act toclamp the block being operated on, are carried by screws S S, whichextend at right angles to each other, and that the surfaces of said dogswhich contact with the block are notched to form teeth,

the purpose of which construction is obvious.-

'recede by means of a crank 13, located on the end of said screw andprovided with a latch 14, which engages a notched wheel 12, as clearlyshown in Fig. 2.

For corner work the attachment shown in detail, Fig. 6, is used. Thisattachment is substantially triangular in shape, andhas at one of itsends a curved portion formed with perforations 10, through which passthe means employed to secure the attachment to the ratchet-plate. Thesides 9 of this attachment obviously project above said turn-table, andto each of them is secured a dog R, which acts in conjunction with thaton the screw S to clamp the block being carved.

From the foregoing the operation and advantages of my improvedcarving-machine will be obvious to one skilled in the art to which itappertains.

It will doubtless be found in the practical construction of the machinethat many of the details may be advantageously varied, and I thereforedo not wish to be understood as limiting myself to the preciseconstruction shown and described.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is-

1. In an automatic carving-machine, the combination of a reciprocatingturn-table having dogs for clamping the block being operated on, aratchet-plate beneath said turntable, and a pawl designed to engage theteeth of said ratchet-plate and to turn the table a step at eachreciprocation.

2. In an automatic carving-machine, substantially as described, incombination with a suitable frame provided with shafting and pulleys, apitman pivoted to said frame, and

a carriage mounted on said frame providedv with means of longitudinaland vertical adjustment, substantially as described, and a turn-tablemounted on said carriage and provided with means of periodical rotaryadjustment, arranged substantially as described.

3. In an automatic carving-machine, substantially as described, thecombination, with a suitable frame provided with shafting and pulleys, apitman pivoted to said frame adapted to operate a carriage, a carriageadapted to traverse said frame transversely and provided with means oflongitudinal and vertical adjustment, substantially as described, of aturn-table mounted on said carriage, and a guide-plate having curvedways secured thereon, substantially as described,

IIO

and means of periodical automatic rotary adjustment of said turn-table,arranged substantially as described.

4:. In an automatic carving-machine, sub stantially as described, incombination with a suitable carriage adapted to traverse said frame,substantially as described, and a turntable provided with dogs adaptedto secure a block of Wood to said table, substantially as described, theratchet-plate provided With the pins or teeth, pawl w, and post v,arranged substantially as described, and for the purpose herein setforth.

to said turn-table, substantially as described, and a pawl attached tosaid transverse Way adapted to engage said ratchet-plate, substantiallyas described, and for the purposes set forth.

6. The herein-described automatic carvingmachine, consisting of a frameprovided with suitable shafting, a crank-wheel having an adjustable pin,a slotted pitman pivoted to said frame and adapted to said crank-wheel,a carriage mounted on said frame, having longitudinal and transverseWays secured to said frame, a turn-table having dogs adapted to secure ablock thereon mounted on said turn-table, a ratchet-plate provided withpins or teeth, a pawl for engaging said pins or teeth of theratchet-plate, and a guide-plate provided with curved guide -plates, allar ranged substantially as described, and for the purposes set forth.

In testimony whereof I affix my signature in presence of two Witnesses.

FRANKLIN D. PEOK.

\Vitnesses:

DENNIS L. ROGERS, CHAS. E. WILLIA ms.

